The Atlona Digital Video Interface DVI with analog audio extender allows you to use 2 X CAT 5/CAT 6 cables to extend video from a computer or other DVI source up to 50M 165ft. This exteder allow for high reolutions up to 1920X1200 and has a loop-outATLONA DVI CAT5 EXTENDER 50M SENDER/RECEIVER INCLUDED. MODEL: AT-DVI50SR Our Smart DVI CAT5 Extender uses two CAT5E/6 cables to extend your DVI